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Audi A4 B8: How to Replace Fog Lights

Replacing your fog lights is easy. Here's the step-by-step guide you'll want to follow.

By Jared Hammond - March 30, 2016

This article applies to the Audi A4 B8 (2005-2015).

Fog lights are important for seeing in poor weather conditions. Most Audi A4's come with standard white fog lights that are pretty good, but they're better at making your car look good than helping you drive in low visibility conditions. Changing the fog lights is easy, so easy it can be done by anyone. Just follow the instructions below to learn more.

Materials Needed

  • Replacement fog light bulbs (H11 on 2005 - 2012 models, H8 on 2013 - present models)
  • T25 Torx screwdriver

Step 1 – Remove the old fog light bulbs

In order to remove the fog light bulbs, you'll need to go through the wheel well lining. Turn the wheels so they point away from the fog light bulb you're changing. This will give you more room to work.

  • Then, use your Torx screwdriver to remove the bottom screws on the front of the wheel well lining. You don't need to remove the entire lining, just enough that you can reach the back of the fog light housing.
  • Once you're able to do that, pull back the lining, grab the fog light bulb socket, and twist it counter clockwise.
  • Pull the bulb socket out of the housing.
  • To disconnect the bulb from the socket, you'll need to push in a tab on the socket and pull the bulb from the socket.
  • Repeat this for the other side.
  • Figure 1. Remove the lower bolts and pull back the wheel well lining.
  • Figure 2. Remove the fog light bulb.

Step 2 – Install new fog light bulbs

  • Insert the new bulb to the bulb socket. Return the socket to the fog light housing and twist it clockwise to lock it into place. Repeat for the other side.
  • Start the car and test the fog lights to make sure that they're lined up straight. Adjust them if necessary.
  • When you're finished, put the wheel well liner back into place and tighten down the Torx screws.
Figure 3. Test your new fog lights.

Pro Tip

Make sure that you don't touch the glass of the fog light bulb with your bare fingers. The oil residue will create potential hotspots on the bulb surface that can cause it to burn out.

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